My Headlights arent working

60

Asked by GuruT5BZK Jun 14, 2018 at 07:48 AM about the 2008 Chevrolet Trailblazer LS Fleet RWD

Question type: Maintenance & Repair

I replaced the bulbs and the fuses on my truck my headlights still aren't working what is the problem?

8 Answers

150

The switch that turns the lights on is the problem had same problem

8 people found this helpful.
11,585

This is one of the most common problems on TB's and Envoys. There's actually a recall for it. Swap relay #43 with #46 (under the hood), do you have lights now? Buy a new headlight relay and keep a spare one with you.

3 people found this helpful.
11,585

Must have got the #'s wrong, many apologies. It's these 2, same exact relay, 1 is the headlight relay, the other is for the fan.

20

The problem is an overvoltage issue on the side that goes out. I am still troubleshooting the issue on my 2004 Trailblazer. I did put a heavy duty relay which helped for about 5 months now, but my light is out yet again.

2 people found this helpful.
11,585

Ectkr, why don't you go to the dealer for the recall? I'm told they finally have a permanent fix.

1 people found this helpful.

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